I changed it to "defnotalawsuit.pdf" and it worked...
They had such glaring errors in their APIs for such a long time that it's almost comical. Such as when they increased the context window from 8K to 32K tokens, they forgot to increase the HTTP CDN WAF limit for a while. If you actually tried to submit that much data, you'd get a HTTP error code back. They never noticed because internally they don't go through a CDN.
Similarly, the "web browsing" feature was comically bad, with a failure rate exceeding 80% for months after it was released. Even when it worked it was glacially slow and would time out easily and fail. Meanwhile Phind was doing the same thing with 100% success rates and lightning fast response times... with a fraction of the budget and manpower.